1. Pick any 5 consecutive numbers. Let's say your friend picks 51, 52, 53, 54, and 55.
2. Find the middle number, (call it the median). In your case, the median is 53.
3. Multiply it by ten (just add a zero to the median). e.g. 53 X 10 = 530
4. Divide (/) by 2. eg. 530 / 2 = 265.
5. That number is the answer -- the same as if we did the sum.
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